'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')

function resolve (dir) {
  return path.join(__dirname, dir)
}

const name = defaultSettings.title || 'vue Admin Template' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9528 // dev port
// const api = process.env.VUE_APP_BASE_API
// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  publicPath: './',
  outputDir: 'admin',
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  devServer: {
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      'dev-api': {
        target: 'http://127.0.0.1:3001',
        changeOrigin: true,
        ws: true,
        pathRewrite: {
          '^/dev-api': ''
        }
      }
    }
    // before: require('./mock/mock-server.js')
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    resolve: {
      alias: {
        '@': resolve('src')
      }
    }
  },
  chainWebpack (config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').tap(() => [
      {
        rel: 'preload',
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: 'initial'
      }
    ])
    // markdown
    config.module
      .rule("md")
      .test(/\.md$/)
      .use("text-loader")
      .loader("text-loader")
      .end();
    config.entry("app").add("babel-polyfill").end();
    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete('prefetch')

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    // config
    //   .when(process.env.NODE_ENV !== 'development',
    //     config => {
    //       // config
    //       //   .plugin('ScriptExtHtmlWebpackPlugin')
    //       //   .after('html')
    //       //   .use('script-ext-html-webpack-plugin', [{
    //       //     // `runtime` must same as runtimeChunk name. default is `runtime`
    //       //     inline: /runtime\..*\.js$/
    //       //   }])
    //       //   .end()
    //       // config
    //       //   .optimization.splitChunks({
    //       //     chunks: 'all',
    //       //     cacheGroups: {
    //       //       libs: {
    //       //         name: 'chunk-libs',
    //       //         test: /[\\/]node_modules[\\/]/,
    //       //         priority: 10,
    //       //         chunks: 'initial' // only package third parties that are initially dependent
    //       //       },
    //       //       elementUI: {
    //       //         name: 'chunk-elementUI', // split elementUI into a single package
    //       //         priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
    //       //         test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
    //       //       },
    //       //       commons: {
    //       //         name: 'chunk-commons',
    //       //         test: resolve('src/components'), // can customize your rules
    //       //         minChunks: 3, //  minimum common number
    //       //         priority: 5,
    //       //         reuseExistingChunk: true
    //       //       }
    //       //     }
    //       //   })
    //       // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
    //       config.optimization.runtimeChunk('single')
    //     }
    //   )
  }
}
